Function importKeyImpl

lib/internal/crypto/webcrypto.js:993–1021

(
  format,
  keyData,
  algorithm,
  extractable,
  keyUsages)

}

function importKeyImpl(
  format,
  keyData,
  algorithm,
  extractable,
  keyUsages) {
  const prefix = prepareSubtleMethod(this, 'importKey', arguments.length, 5);
  let i = 0;
  format = convertSubtleArgument(prefix, 'KeyFormat', format, i++);
  const type = format === 'jwk' ? 'JsonWebKey' : 'BufferSource';
  keyData = convertSubtleArgument(prefix, type, keyData, i++);
  algorithm = convertSubtleArgument(
    prefix, 'AlgorithmIdentifier', algorithm, i++);
  extractable = convertSubtleArgument(prefix, 'boolean', extractable, i++);
  const usages = convertSubtleArgument(
    prefix, 'sequence<KeyUsage>', keyUsages, i++);

  const normalizedAlgorithm = normalizeAlgorithm(algorithm, 'importKey');

  return FunctionPrototypeCall(
    importKeySync,
    this,
    format,
    keyData,
    normalizedAlgorithm,
    extractable,
    usages,
  );
}

// subtle.wrapKey() is essentially a subtle.exportKey() followed
// by a subtle.encrypt().